Coke quenching car



Jan. 12, 1932. v. v. GREG COKE QUENCHING CAR 2 Sheets-Sheet 2 Filed Nov. 15, 1929 INVENTOR. V/Ciorr MGre Patented Jan. 12, 1932 N TED 's TEs PATENTOFFICE VICTOR v. GREG, or nonMoNT; PENNSYLVANIA, ASSIGNOR TO THE KOPPER-S COMPANY,

- Y VA'CORPORATION on DELAWARE I q con. ooniveiiiive CAR f Application filed November 13,1929. Serial No. 406,754.

This invention relates to cars into which coke is pushed from the distillation chambers of coke ovens and in which quenching of'the coke takes place. It relates in particular to the sloping floors of such quenching cars and to plates used for forming the surface of the sloping floors.

Plates designed previousto my invention were held in place by means of'bolts passing through holes located adjacent the edges or corners of the plates. The'plates have to support a large quantity of red-hot coke for a few minutes and are then subjected to the cooling action 'of'water used for flooding or quenching the coke. Theextreme and sudden temperature changes caused suflicient ex- I pansion and contraction tocrack the plates as their expansion movements were resisted by the bolts that passed entirely through the plates. r

1 Although the bolts used to secure the plates were provided with countersunk heads there was some irregularity of surface; Sincethe bolts were of steel instead of cast iron, ex-

'cessive" corrosion resulted from heat' and water. The plates were deslgned to overlap like shingles on a roof, which feature pr'e-' vented the coke from sliding easily. Some of the objects of my invention'are to fasten the plates in such relative positions as to allow for the extreme expansion and contraction to which they-are subjected; to

hold them in position by retaining means which does not pass through the surface of the plates; to fasten them without overlapping of the plates; and to provide a suitable underframe for permitting the use of plates having the above-mentioned advantages;

Other objects are tojpermit the removal of an individual plate readily without disturbing the adjacent plates; and to eliminate the necessity for accurately located holes in the underframe for the fastening bolts which passed through the plates and the underframe' In the drawings,

Figure 1 is aplan view of several of the floor plates assembled on their supports;

Fig. 2' is a section taken on line IIII of Fig. 1;

bars.

' I allow the side flanges 6 to re Fig. 3 is a sectional view taken on line III-III of Fig. 1;

Fig. 4 is a plan view of an individual plate; Fig. 5 is asectio-nalview of a plate taken on line VI on line VV of Fig. 4;

r Fig. '6 is a similar view taken VI of Fig. 4; r Fig. 7 is a perspective view showing a retaining clip in assembled position;

Fig. 8 is a seetional'v'iew taken on line VIIIVIIIof Fig. 7

Fig. 9 is a section on line IXIX of Fig. 8; Fig. 10 is a perspective view-of the clip detached; and Y i r Fig. 11 is a vertical transverse section through a complete quenchingcar.

. As shownin Fig. 1, the floor ofa quenching car'co'mprises a plurality of floor plates 1 resting on a plurality of inverted railroad rails 2 and aplurality of cross bars 3. The rails 2 are spaced apart in parallel relation and'thecross bars 3 are arrangedat right angles to thera'ils. Cross bars 3' are fastened to'the rails 2 by means of bolts land the rails and "bars form a grid or network having a plurality of rectangular openings therein.-

The sides of thefloor plates 1 rest on the rails2 and the ends of the floor plates 1 rest on the cross bars 3. The overall width of each floor plate is approximately equal to the centerline-to-centerline spacing of adjacent rails 2 and the overall length of each floor plate 1 is approximately equal to thecenterline to-centerline spacing of adjacent cross Each floor plate 1 has two downwardly extending flanges 6 along its side edges, two. downwardly extending flanges 7 across its ends and two downwardly extending flanges 8. Each plate hasone central longitudinal flange 9. r a 1 The top surfaces of the cross bars 3 are higher than the top surfaces of the inverted I rails 2. All parts of, the flanges that rest on the cross bars 3 are recessed su'fliciently to st firmly on the top surface of'the rails 2. p 7 j "As shown in Figs. 2 and; 5, the flanges 6' and 9 at the endsof each plate are recessed an amount equal to the thickness of bars 3 to allow the greater part of the length of the side flanges 6 to rest on the upper surface of the rails 2. The end flanges 7 are also recessed with respect to the depth of the greater part of the side flanges 6 by an amount equal to the thickness of the cross bars 3.

The recesses of the end portions of the floor plates 1 prevent endwise movement of the same by permitting the deep central portions of the flanges 6 and 9 to abut or engage the edges of the cross bars 3. Lugs 11 shown in Figs. 3 and 6 extend downwardly from the cross flanges 8. They prevent sidewise movement of the floor plates 1 sincethey abut or engage the side edges of the inverted rails 2. j V 1 Upward displacement of the plates .1 is prevented by clips 12 shown in Fig. 7 and also Figs. 2 and 8. The clips are made from angle iron and one clip is fastened near each end of the center flange 9 of each plate 1 by means of bolts 13 passing through holes 1 1 cored out of the flange 9.

During the process of making the clip 12 from angle iron, enough of one of the two flanges of the angle iron, for example, a vertical flange, is cut away to leave a horizontal toe 15, as best seen in Fig. 10. The remainder of the upright part of the clip is bolted against the flange 9 at such an elevation that the upper surface of the toe 15 just fits beneath cross bars 3.

The clips 12 need not be so carefully spaced longitudinally as to contact with the edges of the cross bars 3 and are preferably spaced slightly away from the edges of the bar 3. The recessed ends of the flanges 6 and 9 are of ample strength to prevent endwise movement of the plates 1. 7

To remove one of the plates 1 it is only necessary to unbolt both of the two clips 12 that are attached to that particular plate. Attention-is called to the fact that the clips 12 are not located adjacent the inverted rails 2 but in all instances engage the cross bar 3 midway between two adjacent rails 2.

The floor plates 1 are cast to provide about one-eighth of an inch clearance around their peripheries so that the space between two adjacent plates may be as much as one-fourth of an inch. The tops are smooth, not being marred with bolt holes and the edges of adjacent plates are of uniform height since their adjacent peripheral flanges rest directly on the same rail or cross bar as the case may be.

The entire floor structure 16, composed of the rails 2, cross bars 3 and floor plates 1 resting thereon, for a complete coke quenching car 17 is located on the car at an angle of approximately from the horizontal, as shown in Fig. 11. The floor structure 16 rests on a suitable framework 18 that in turn is supported by wheels 19 and railway tracks r In operation, hot coke is pushed onto the floor structure 16 from its upper edge; the car 17 is then moved along track 20 to place it under a shower of water for quenching the coke. The car is again moved along the track 20 to place it opposite a suitable coke receiving means whereupon doors 22 are opened and the cooled or quenched coke slides down the smooth surface of the floor structure 17.

In normal operation, redhot coke is placed in direct contact with the floor plates 1 comprisingcthe floor structure 16. Since many tons of'coke are pushed into the quenching car at one time, the. red-hot coke is pressed firmly in contact with the floor plates 1. It requires a few minutes of time to move the car 17 along the track for locating it underneath the equipment that quenches the coke with water. When quenching starts, the plates which are quite hot from firm contact with red-hot coke are subjected to blasts of steam and quantities of hot and cold water. The contraction and expansion is large in amount and take place suddenly.

If, after a load of coke has been pushed into the quenching car, some slight abnormality takes place in the operation of the coking plant as, for example, the failureof electric current for propelling the car or a failure in the water supply for half'of an hour, the floor plates become highly heated before they are subjected to the sudden chillfrom the quenching, which conditions cause greater expansion and more severe contraction in the plates 1 than in normal operation.

Some of the advantages of afloor plate structure made in accordance with my invention are the freedom from cracking of plates due to the fact that bolts do not pass through the surface of the plate to exert a lever action thereon or weaken the surface of the plate by virtue of not havinga continuous plane. Lack of continuity in the plate results in internal stresses in the casting. The bolts that pass through the downwardly extending flanges underneath the plates are merely for attaching the clips to the plates instead of for bolting the plates to the supporting framework. The clips are i'ree to move with respect to the frame-work sufficiently to allow "for the extreme expansion and contraction. T'he use of these plates results in extreme ease of replacement and in great simplicity of framework. A

Each floor plate comprises a single casting only and the floor plates themselves, the rec tangular lattice of supporting rails and cross bars at right angles thereto provide against movement in all possible directions that may take place in the plane of the floor plates except movements due to expansion. The relatively small clips and bolts need only the supporting grid or take care of small and occasionallifting forces such as vibration and jarring due to movement ofthe car, and the slight shocks resulting from the depositing of the coke in the car from a height of several feet.

The inverted railroad rails 2 may be replaced by I-beams or beams of other section and numerous changes of detail may be made. The single embodiment described above is' for illustrative purposes only and the scope of the invention is limited only as indicated.

members extending beneath said framework.

7 A floor for quenching cars comprising a supporting framework, a plurality of plates having downwardly extending flanges and having also continuous and unbroken upper surfaces, means for retaining said plates on said framework comprising members secured to said flanges and projecting beneath said framework for slidable engagement therewith. v

In testimony whereof, I have hereunto subscribed my name this 6th day of November,

- VICTOR v. GREG.

wardly extending peripheral flanges coacting with the upper surface of the frame members, downwardly extending central flanges engaging the side edges of the frame members and means supported by one of the central flanges for engaging a lower surface of the frame members.

3. A floor for quenching cars comprising frame members and plates having edges resting on said frame members, said plates having ribs on their lower sides and clips extending downwardly from the sides of said ribs, each clip having a projection at its lower portion that extends beneath a part of one of said frame members.

4. A floor for quenching cars comprising a frame having a rectangular opening therein, a plate extending beyond the edges of said opening and having a rib extending from edge-to-edge of said opening and a clip secured to said rib and having a portion extending parallel to the plane of the plate for engaging the lower side of a portion of said frame.

5. A floor for quenching cars comprising a supporting structure and a plurality of plates that lie in a common plane and have unbroken upper surfaces, each plate having flanges on its lower side for engaging the supporting structure and each plate having means connected to one of its flanges for slidably engaging lower surfaces of said supporting structure for preventing upward displacement of said plates therefrom.

6. A floor for quenching cars comprising a supporting framework, aplurality of plates having continuous and unbroken upper surfaces on said framework, and angle members for preventing upward displacement of said plates, a portion of each of said angle members being connected to a lower portion of a plate and another portion of said angle 

